From: Andrew Jones <ajones@ventanamicro.com>
To: linux-riscv@lists.infradead.org
Cc: 'Paul Walmsley ' <paul.walmsley@sifive.com>,
'Jisheng Zhang ' <jszhang@kernel.org>,
'Palmer Dabbelt ' <palmer@dabbelt.com>,
'Heiko Stuebner ' <heiko@sntech.de>,
'Conor Dooley ' <conor.dooley@microchip.com>,
'Albert Ou ' <aou@eecs.berkeley.edu>
Subject: [PATCH v2 1/6] riscv: Clarify RISCV_ALTERNATIVE help text
Date: Fri, 24 Feb 2023 16:45:56 +0100 [thread overview]
Message-ID: <20230224154601.88163-2-ajones@ventanamicro.com> (raw)
In-Reply-To: <20230224154601.88163-1-ajones@ventanamicro.com>
Clarify RISCV_ALTERNATIVE's help text by pointing out that code
patching is not only done at boot time, but also module load time.
Also point out that this is the minimal possible overhead.
Signed-off-by: Andrew Jones <ajones@ventanamicro.com>
---
arch/riscv/Kconfig | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 81eb031887d2..eb087e17c91b 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -380,8 +380,8 @@ config RISCV_ALTERNATIVE
help
This Kconfig allows the kernel to automatically patch the
errata required by the execution platform at run time. The
- code patching is performed once in the boot stages. It means
- that the overhead from this mechanism is just taken once.
+ code patching overhead is minimal, as it's only done once
+ at boot and once on each module load.
config RISCV_ALTERNATIVE_EARLY
bool
--
2.39.1
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next prev parent reply other threads:[~2023-02-24 15:46 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-24 15:45 [PATCH v2 0/6] riscv: alternative/cpufeature related cleanups Andrew Jones
2023-02-24 15:45 ` Andrew Jones [this message]
2023-02-24 15:45 ` [PATCH v2 2/6] riscv: Rename Kconfig.erratas to Kconfig.errata Andrew Jones
2023-02-24 15:53 ` Ben Dooks
2023-03-15 4:35 ` Palmer Dabbelt
2023-02-24 15:45 ` [PATCH v2 3/6] riscv: alternatives: Remove unnecessary define and unused struct Andrew Jones
2023-02-24 15:45 ` [PATCH v2 4/6] riscv: alternatives: Rename errata_id to patch_id Andrew Jones
2023-02-24 15:46 ` [PATCH v2 5/6] riscv: lib: Include hwcap.h directly Andrew Jones
2023-02-24 15:46 ` [PATCH v2 6/6] riscv: cpufeature: Drop errata_list.h and other unused includes Andrew Jones
2023-03-18 1:00 ` [PATCH v2 0/6] riscv: alternative/cpufeature related cleanups patchwork-bot+linux-riscv
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